baber/WOPTO huggingface dataset:
Patent GB-270113-A (GB)
Title: Improvements in or relating to central heating plants
IPC: F24D3/02
Filed: 1926-06-18
Abstract: 270,113. Moreau, H. June 18, 192.6. Direct steam pressure apparatus, automatic.- Water is delivered into a heating plant through a pulsating tank by means of steam pressure, and thence to an expansion vessel which then discharges into the pulsating tank when the pressure decreases, and the cycle is then repeated. Steam is admitted through a valve 4 at the top of a conical part 2 of the pulsating tank 1, and water is expelled through pipe 15 to the heating plant and then to an expansion tank. The water returns through pipe 9 having a non-return valve 11. The valve 4 is actuated by a float 20 through a rod 6. A small pipe 12 is provided to keep the valve 11 flooded, and a small pipe 24 connects the conical part 2: with the upper part of the expansion tank. The admission of steam to the conical part 2 ensures a gradual expulsion of the water. When the pipe 26 is uncovered, a small quantity of steam escapes to the expansion tank and condenses. and when the float 20 rests on the float 19 the valve 4 closes, and the steam is then gradually expelled through the pipe 26 to the expansion vessel. Water returns through pipe 9, and the valve 4 reopens when the float 20 reaches the abutment 21 to admit steam to form a cushion. The upper layer of water becomes heated, and a new cycle commences. The small float 19 carried by the rod 6 is insufficient to lift the valve 4, but sufficient to maintain it open after it has been opened by float 20. The conical part 2 is surrounded by the expansion vessel 22. The tubes 24, 26, opening into the expansion tank, are provided with non-return valves 25, 28. An adjustable air intake 29 may be provided, and the tank 1 may be connected with the boiler 18 through a vessel 32 to obtain rapid starting of the apparatus by the admission of cooler water from the vessel 32. The admission of a limited quantity of air through the pipe 29 ensures the action of the valve 11 without excessive noise, or alternatively this may be ensured by connecting the pipe 9 to the bottom of the tank 1. Feed, supplying.-The system is also applicable for supplying boiler feed water. In this case, the pipe 17 enters the boiler 18 at the desired water level, so that when the pipe is uncovered, the apparatus comes into operation, and water is delivered into the boiler.
Patent GB-1207472-A (GB)
Title: Apparatus comprising an electric motor and a heating resistor
IPC: F24H3/04
Filed: 1969-03-25
Abstract: 1,207,472. Control of A.C. motors. N.V. PHILIP'S GLOEILAMPENFABRIEKEN. 25 March, 1969 [28 March, 1968], No. 15558/69. Heading H2J. Apparatus comprising an electric motor 1 and a tapped heating resistor 4, 5 forming a hair drier is provided with two ganged switches 11, 12 so that the apparatus may function on either of two different voltages at the supply terminals 7, 8. With the switches in the positions shown in the figure the apparatus is connected for the application of the higher voltage (230 volts) to the terminals 7, 8 so that the whole resistor 4, 5 is connected in series with the motor 1. With the switches moved to the upper positions the apparatus is arranged for operation at the lower voltage (100 volts) in which case the part 4 of the resistor is connected directly across the terminals 7, 8 whilst the part 5 only is in series with the motor 1. Thus a desired optimum ratio between the power absorbed by the motor and by the resistor can be obtained. In a second embodiment the two parts 4, 5 of the resistor may be made variable.
Patent GB-1174770-A (GB)
Title: Textile Treatment Process
Inventor: BLACK WILLIAM
IPC: D06M13/322
Filed: 1966-04-07
Abstract: 1,174,770. Cationic agents. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 March, 1967 [7 April, 1966], No. 15655/66. Heading C2C. [Also in Division D1] Cationic agents used in the treatment of textiles comprise (1) the dimethyl sulphate quaternary salt of N-stearoyl-N<SP>1</SP>,N<SP>1</SP>-dimethylethylene diamine; (2) the reaction product of 1 mol. of diethylene triamine with 1 mol. of stearic acid and 1 mol. of dimethyl sulphate; (3) the reaction product of 1 mol. of diethanolamine with 1 mol. of stearic acid and about 0À5 mol. of dimethyl sulphate; (4) the reaction product of 1 mol. of triethanolamine with 1 mol. of stearic acid and 1 mol. of dimethyl sulphate; (5) the reaction product of 1 mol. of diethylene triamine with 3 mols. of ethylene oxide, 2 mols. of stearic acid and I mol. of dimethyl sulphate; (6) the reaction product of 2 mols. of #-aminoethanolamine with 2 mols. of stearic acid, 1 mol. of urea and 1 mol. of acetic acid; (7) the reaction product of 2 mols. of triethylene tetramine with 4 mols. of ethylene oxide, 2 mols. of stearic acid, 1 mol. of urea and 2 mols. of acetic acid; (8) the dimethyl sulphate quaternary salt of the di- or tristearoyl esters of tetrakis-(#-hydroxy ethyl) ethylene diamine; (9) the reaction product of N-(#-aminoethyl) piperazine with 2 mols. of stearic acid and 1 mol. of dimethyl sulphate; or (10) the reaction product of 2 mols. of tetraethylene pentamine with 3 mols. of ethylene oxide, 2 mols of stearic acid, 2 mols. of urea and 2 mols. of acetic acid.
Patent GB-1041670-A (GB)
Title: Improvements in or relating to thermographic reproduction
IPC: B41M5/40
Filed: 1964-04-15
Abstract: A plastics film support is coated on one or both sides with an anti-static agent dispersed in a binder, the layer(s) not melting below 120 DEG F. and overcoated or coated on the other side with a heat-transferable layer melting below the anti-static coating. Specified anti-static coatings are surface-active agents dispersed in polyethylene glycols or ethyl cellulose.  Other cellulose ethers, polyhydrocarbons and vinyl polymers examples of which are given may be used as binders.  The transfer layer may be a wax which may contain a dye whilst the support which is preferably 0.3-3 mils thick, may be a polyester, e.g. polyethylene terephthalate polyethylene, polypropylene, polytetrafluorethylene, chlorinated rubber, polyvinyl chloride and cellulose acetate.
Patent GB-570686-A (GB)
Title: Improvements in or relating to the manufacture of artificial filaments, threads, films or the like from protein solutions
IPC: D01F4/00
Filed: 1943-09-24
Abstract: Artificial filaments, threads, films and the like prepared by the extrusion of a protein solution into a saline coagulating bath of acid reaction, are passed prior to subsequent insolubilisation, through one or more baths which include an aqueous emulsion or dispersion of an aliphatic lubricant comprising an oil, fat or wax before collecting them from the coagulating or subsequent treatment baths so as to prevent them sticking together.  The lubricant may be a vegetable or animal fat or oil, e.g. arachis oil or olive oil, or a fatty acid, e.g. oleic acid, of negligible drying properties and it may be dispersed in a bath or baths in the form of an emulsion or dispersion, with the assistance of suitable emulsifying or dispersing agents such as those known under the Registered Trade Marks "Lissopol L.S.," "Lissopol C.," "Lissopol A." and "Dispersol A."  The so-treated filaments are subsequently subjected to a hardening or insolubilising treatment.  In the examples, artificial filaments are prepared by extruding a solution of ground nut protein in aqueous sodium hydroxide into a coagulating bath comprising an aqueous solution of sodium sulphate containing sulphuric acid and in which arachis oil is dispersed with the aid of a dispersing agent.  The filaments are stretched in the wet condition and may be further treated in an aqueous solution of sodium sulphate containing a dispersion of arachis oil.  The filaments are then cut, immersed in a saturated solution of sodium chloride or sodium sulphate and insolubilised in a bath containing a saturated solution of sodium chloride containing formaldehyde and sulphuric acid.  Specification 513,910 is referred to.
Patent GB-793863-A (GB)
Title: Improvements in or relating to brushes
Inventor: TAYLOR MICHAEL EVERARD
IPC: A46B7/02
Filed: 1954-05-27
Abstract: 793,863. Collapsible brushes. TWINCO, Ltd. May 24, 1955 [May 27, 1954], No. 15691/54. Class 19. A collapsible brush comprises bristle carrying members rotatably mounted between the side walls of a channel-like brush back and a slider which when inserted beneath the bristled members rotates them from a position in which the bristles are recumbent to a position in which they are upstanding. As shown the bristled members 6 are mounted between the side walls 4 of the brush back and there is provided a closure member 14 which may be removed from channel 19 and inserted in a channel 15 beneath the bristled members to rotate them and hold an upper face 9 against the lower face 11 of a groove in the side wall of the brush back.
Patent GB-349297-A (GB)
Title: Improved fuel supply pump for internal combustion engines
IPC: F02M59/00
Filed: 1930-05-22
Abstract: 349,297. Fuel pumps. HEMMING- SEN, T. V., 4, Ove Billes Tvaervej, Copenhagen. May 22, 1930, No. 15729. [Class 102 (i).] Means for supplying liquid fuel to an injector comprise a fuel inlet 29 and outlet 33 in a casing 1 housing a mechanically actuated low pressure or primary pump 6 and a coaxially arranged high pressure or secondary pump 13, the delivery stroke of which is effected by the fluid pressure exerted on a differential plunger 12 due to the trapping of a quantity of fuel in a space 9 between the adjacent ends of the plungers 6 and 12 during the delivery stroke of the low-pressure pump. The quantity of fuel injected is controlled by rotating the low-pressure pump barrel 3 to vary the positions of radial ports 11 therein in relation to an inclined edge 10 of a longitudinal duct 8 communicating with the space 9; thus the injection period is regulated by byepassing fuel into an annular chamber 28. The duct 8 is put out of communication with the chamber 28 as a groove 7 passes out of register with ports 11, the resulting reduction in pressure causing the plunger 12 to travel downwards until it meets a stop 30 as the plunger 6 uncovers ports 11 at the end of its downward stroke. During the initial downward movement of the differential plunger the adjacent faces 16, 17 of the plungers 12 and 13 are separated owing to a small amount of axial play provided between a collar 18 in a recess 19 formed in a coupling member 14; ribs are formed on the upper surface of the collar 18 to permit fuel to pass during the suction stroke to an axial duct 15 in plunger 13 and thence to a space 31 at the delivery end of the plunger. The duct 15 is closed during the delivery stroke by the contacting face of the plunger 12. A tension spring 23 initiates the separation of the adjacent faces 16, 17, at the end of the delivery stroke ; the spring is secured to a ring 20 having arms 21 which extend inwardly through slots 22 in the pump barrel to bear on the upper end of the coupling member 14. Ducts 27 are provided to allow the entrapped fuel in the chamber 9 to escape during the upward stroke of the plunger 6 in the event of the plunger 12 remaining in its uppermost position during the suction stroke.
Patent GB-968278-A (GB)
Title: Improvements in card or label holders particularly for use with steel shelving
IPC: G09F3/20
Filed: 1960-05-04
Abstract: 968,278. Labels. E. S. W. WARD. April 27, 1961 [May 4, 1960], No. 15741/60. Heading B8F. [Also in Division E2] A card or label holder for shelving comprises a metal plate 4 having on its front face a socket formed by a punched-up portion between horizontal slits 7, Fig. 3, and stamped-out portions 6 for receiving the card or label, the bottom edge of the plate being formed with a lip 5 to engage underneath the shelf flange. The socket is engaged by one leg 8 of a spring clip having a base portion 9 and another leg 10 bent inwardly to form a spring tongue and adapted with the leg 8 to grip between them the shelf flange and hold the plate in position.
Patent GB-329512-A (GB)
Title: Improvements in and relating to radio apparatus
IPC: H01F17/00
Filed: 1929-05-21
Abstract: 329,512. Hanson, J. A. May 21, 1929. Inductances.-Tuning-coils for radio receivers comprise air-spaced single or multi-layer primary and secondary windings wound in the same direction and throughout the circumferential length of an endless metallic core, one terminal of each winding being open so that the windings are capacity coupled. As shown, Figs. 2 and 3, the core comprises half-round sections 12 of solid or laminated iron, one winding consisting of layers 14, 16 of air-spaced turns with terminal connection 21, the other winding comprising layers 18, 20 with terminal connection 23. Insulation 13, 15, 17, 19, 25, is provided. The terminals 22, 24 are normally open and may be used for testing purposes.
Patent GB-1424414-A (GB)
Title: Cyclopentane derivatives
IPC: C07C401/00
Filed: 1973-04-02
Abstract: 1424414 Cyclopentane derivatives PFIZER Inc 2 April 1973 [17 April 1972] 15767/73 Heading C2C [Also in Division C3] The invention comprises cyclopentane derivatives of the Formulae I, II and IV wherein R is an organic protecting group for hydroxy groups which is stable to hydrogenation and to basic hydrolysis but easily removable by mild acid hydrolysis; R 1  is a hydrocarbylcarbonyl protecting group for hydroxy groups which is stable to hydrogenation and to acid hydrolysis but easily removable by mild basic hydrolysis, and R 2  is a hydrocarbyl protecting group for carboxy groups which is stable to hydrogenation and to acid hydrolysis but easily removable by mild basic hydrolysis and their preparation. The esters of 7 - (2# - hydroxymethyl - 3α - (OR) - 5α - (OR 1 )- 1α-cyclopentyl)heptanoic acid (Formula II above) are prepared by hydrogenating the corresponding esters of 7-(2#-benzyloxymethyl- 3α - (OR) - 5α - (OR 1 ) - 1α - cyclopentyl) - cis - 5- heptenoic acid (Formula I above) which is prepared by acylating the corresponding esters of 7 - (2# - benzyloxymethyl - 3α - (OR) - 5α- hydroxy - 1α - cyclopentyl) - cis - 5 - heptanoic acid, resulting from the esterification of 7-(2#- benzyloxymethyl - 3α - (OR) - 5α - hydroxy - 1α- cyclopentyl) - cis - 5 - heptenoic acid (Formula IV above), obtained by reacting (4-carboxybutyl)triphenylphosphonium bromide with the appropriate 4# - benzyloxymethyl - 5α - (OR)- 3,3aα,4,5,6,6aα - hexahydro - 2H - cyclopenta[b] furan-2-ols.
Patent GB-354873-A (GB)
Title: Improvements in electric switches with arc-extinction by selfgenerated vapour pressure
IPC: H01H33/57
Filed: 1930-05-22
Abstract: 354,873. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 22, 1930, No. 15828. Convention date, Aug. 20, 1929. [Class 38 (v).] In an "expansion" switch, as described in Specification 16360/30, the vapour from the expansion chamber is vented to atmosphere or to an adjoining room by means of a metal pipe which is insulated from earth. As shown in the Figure, the exhaust pipe 17 from the upper division 12 of the expansion chamber is supported by wall insulators 18 and passes to the outside through a roof insulator 19. In modifications the exhaust pipe passes horizontally through a wall insulator to the outside or vertically through the floor.
Patent GB-1424403-A (GB)
Title: Diorganophosphonomethyl derivatives of cyclic ureides, their manufacture and use
IPC: C08K5/53
Filed: 1973-04-03
Abstract: 1424403 Diesters of substituted methane phosphonic acid CIBA-GEIGY AG 3 April 1973 [4 April 1972] 15847/73 Heading C2P [Also in Division C3] The invention comprises phosphonate esters of the formulae where Z is a divalent hydrocarbon radical which completes a 5- or 6-membered ring, Y is a divalent aliphatic, cycloaliphatic or araliphatic radical and R 1  and R 2  are alkyl or alkenyl which may be substituted, e.g. by halogen, or together represent a C 2 -C 5  alkylene radical. They may be obtained either (a) by reacting a compound wherein X is Cl or Br with a triorgano phosphite (R 1 O)(R 2 O)P(OR 3 ) where R 3  is an optionally substituted alkyl or alkenyl group, the reaction being normally effected at above 100‹ C.; or (b) by reacting a compound  in which R<SP>1</SP> is H, C 1 -C 6  alkyl, C 1 -C 6  hydroxyalkyl, C 2 -C 10  alkoxyalkyl or an aryl group with a phosphite diester (R 1 O)(R 2 O)P(O)H, the reaction being suitably effected at 40‹ to 100‹ C. in the presence of a solvent or diluent and optionally in the presence of an acid or basic catalyst, e.g. HCl or triethylamine. The products are useful as flame-retardants for plastics materials, e.g. epoxy resins.
Patent GB-312241-A (GB)
Title: Means for determining the electric break-through tension of solid substances or of finished insulators
Filed: 1929-05-22
Abstract: 312.241. Siemens & Halske Akt.- Ges. May 22, 1928, [Convention date]. Detecting faults. - The breakdown tension of solid materials or of finished insulators is measured with the insulator and electrodes immersed in a liquid under pressure. As shown, the substance 9 to be tested is placed between a fixed electrode 3 and a spring- pressed electrode 2 supported within a porcelain, h a, r d paper, or other insulating cylindrical vessel 1 which is filled with oil or other insulating liquid maintained under pressure by means of a piston 6 and weight 7. The required pressure may alternatively be generated by means of a bottle of compressed gas with the assistance of a reducing valve. If such tensions are to be employed that the pumping-over path on the outer surface of the cylinder 1 is insufficient, the testing vessel may be placed under insulating oil.
Patent GB-354876-A (GB)
Title: Improvements in optical devices for reproducing sound from film records
IPC: G11B7/00
Filed: 1930-05-23
Abstract: 354,876. Optical sound-reproducing apparatus. BUSSARD, C. D. and LANE, G., 10, Avenue Victor-Emmanuel III, Paris. May 23, 1930, No. 15880. Convention date, Dec. 18, 1929. [Class 40 (ii).] For reproducing sound from a film record, an optical system is used comprising a cylindrical lens O which forms a real image I of a light source S ; the image may fall directly on the film, or a further lens 'system L of any suitable kind may be so arranged as to project the image, reduced in dimensions, upon the film at J. A screen E having a linear aperture slightly larger than the image I may be placed where this image is formed, to screen off light diffused by the lens O. A condensing lens C is provided between the light source and the lens 0. All the lenses may be mounted in an internally blackened tube, with the ends of the lens O projecting through the tube.
Patent GB-894498-A (GB)
Title: Improvements in or relating to electric cables having mass-impregnated, laminated dielectrics
Inventor: HALL HERBERT CYRIL
IPC: H01B7/02
Filed: 1959-05-08
Abstract: 894,498. Laminates. BRITISH INSULATED CALLENDER'S CABLES Ltd. May 9, 1960 [May 8, 1959], No. 15892/59. Class 140. [Also in Group XXXVI] A mass-impregnated electric cable comprises a conductor with dielectric comprising at least in part layers of helically lapped plastics tapes separated by layers of felted fibrous material. The plastics tapes are high molecular weight, high-melting point carbonic acid polyesters described in Specifications 772,627, 808,485, 808,486, 808,488, 808,489, and sold as " Makrofol " (Registered Trade Mark). The fibrous layers are tapes of short matted plastics fibres or of paper, lapped on separately from or simultaneously with the plastics tape(s), or of short plastics fibres adhesively matted on to the surface(s) of the plastics tape before winding.
Patent GB-758477-A (GB)
Title: Improvements in the preparation of compounds of fluorine and carbon
IPC: H01B3/44
Filed: 1954-05-28
Abstract: The invention comprises a method of synthesizing fluorocarbons by the action of a fluoride of N, P, As, Sb, Bi, S, Se or Te on carbon in any form at temperatures at least 900 DEG  C.  The high temperature and carbon may be provided by a carbon arc either in liquid or gaseous reactant, but generally the carbon is in excess, and any method of reaction may be used.  Drawings of suitable apparatus and designs of suitable carbon arcs are given.  In examples carbon black with phosphorus III and arsenic III fluorides give carbon tetrafluoride; gaseous arsenic III fluoride in the carbon arc gives mainly tetrafluoroethylene, and also with the arc in the liquid fluoride; nitrogen III, sulphur VI and phosphorus V fluorides give in the carbon arc CF4, and tetrafluoro ethylene; minor quantities of hexafluoroethane, octafluoropropane and other saturated or unsaturated fluorocarbons are generally obtained; carbon black heated with sulphur VI fluoride gives CF4 and some hexafluoroethane; the other fluorides mentioned above are also specified in 2 valencies. Drawings of suitable carbon arcs and plant are given.
Patent GB-612545-A (GB)
Title: Colouring of leather
IPC: D06P3/32
Filed: 1946-05-27
Abstract: Leather is coloured by pigmenting it in the presence of one or more dispersing agents with an aqueous dispersion of pigment, the majority of the particles of which have a diameter of less than 1 m .  In an example, chrome tanned calf skin is drummed with a solution of sodium bicarbonate, a dispersion of the pigment 4-chloro-2-nitroaniline --> acetoacet-o-chloro-anilide in water containing the sodium salt of the condensation product of naphthalene sulphonic acid and formaldehyde is then added, followed by a small amount of glacial acetic acid.  In a second example, the pigment used is copper phthalocyanine and the dispersing agent is the sodium salt of isopropyl-naphthalene sulphonic acid.
Patent GB-770403-A (GB)
Title: Improvements in or relating to machines for recessing jewel bearings
IPC: B28D5/02
Filed: 1954-05-31
Abstract: 770,403. Drilling jewels. GENERAL ELECTRIC CO., Ltd., and HUMPHREY, R. May 31, 1955 [May 31, 1954], No. 16086/54. Class 83 (3). [Also in Group XXIII] A jewel-recessing machine comprises means for rotating a needle 9, means 10 for grinding the point at intervals, means for withdrawing the needle when an operation is complete, and means 5 for moving a further jewel into position. In operation, synthetic sapphires are placed in containers 8 positioned in recesses 6 in a belt 5. The container beneath the drill is clamped by an arm 35 in a V-notch 34 in a table 30 adjusted laterally by micrometer-screws 31. A small quantity of diamond powder in liquid is placed on the jewel and a cam 44 on a shaft 15 lowers the drill-carriage 2. After a short period, the needle is withdrawn by the cam 44 and a further cam 17 permits a grinding-wheel 10 to be fed by springs 41 to grind the drill point at an angle determined by a scale 42. The needle is then re-lowered. At each withdrawal of the drill a capstan-operated screw 14 is actuated to lower the needle to compensate for the grinding. During the drilling, the drill is vibrated by a solenoid 12, the amplitude being progressively decreased by a stepping-switch operated by a cam 18 and a switch 27 until, prior to completion of the operation, the vibration is stopped by a switch 26 operated by a further cam 18. When the needle reaches the required depth, determined by a stop 43, contacts 13 are operated so that, when the needle is withdrawn, a solenoid 23 is actuated to withdraw a pin 24 from a lever 19. The lever carries a lug 21 which is pulled into a recess 22 in the cam 16 by a spring. Movement of the lever advances the belt 5 to bring the next jewel into position and the stepping-switch returns to its position for maximum vibration. When the needle has worn to its limit, a log 45 on the carriage 2 operates a micro-switch and energizes a solenoid 46. The solenoid causes a pin 47 to project and engage a recess 50, as an arm 48 moving with the carriage swings downwardly. Interlocks are provided to prevent movement during the grinding-operation.